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Fiber-optic combined FPI/FBG sensors for monitoring of radiofrequency thermal ablation of liver tumors: ex vivo experiments
Date
2014
Abstract
We present a biocompatible, all-glass, 0.2 mm diameter, fiber-optic probe that combines an extrinsic Fabry–Perot interferometry and a proximal fiber Bragg grating sensor; the probe enables dual pressure and temperature measurement on an active 4 mm length, with 40 Pa and 0.2°C nominal accuracy. The sensing system has been applied to monitor online the radiofrequency thermal ablation of tumors in liver tissue. Preliminary experiments have been performed in a reference chamber with uniform heating; further experiments have been carried out on ex vivo porcine liver, which allowed the measurement of a steep temperature gradient and monitoring of the local pressure increase during the ablation procedure. © 2014 Optical Society of America
Supervisor
Description
peer-reviewed
Publisher
Optical Society of America
Citation
Applied Optics;53 (10), 1 April, pp. 2136-2144
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Tosi_2014_fiber.pdf
Adobe PDF, 1.13 MB
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Funding Information
Science Foundation Ireland (SFI), Marie Curie-Sklodowska Action (MCSA)